public void Should_call_dispose_action_once()
{
var x = 0;
var d = new ActionDisposable(() => x++);
x.Should().Be(0);
d.Dispose();
x.Should().Be(1);
d.Dispose();
x.Should().Be(1);
}
public void DisposeNativeResourcesDisposed_Dispose()
{
var nativeResourcesDisposed = false;
var instance = new ActionDisposable(null, () => nativeResourcesDisposed = true);
instance.Dispose();
Assert.True(nativeResourcesDisposed);
}
public void DisposeManagedResources_Dispose()
{
var managedResourcesDisposed = false;
var instance = new ActionDisposable(() => managedResourcesDisposed = true);
instance.Dispose();
Assert.True(managedResourcesDisposed);
}
public void DisposesWithAction()
{
bool onLeaveCalled = false;
Action onLeave = () => { onLeaveCalled = true; };
var disposable = new ActionDisposable(() => { }, onLeave);
Assert.False(onLeaveCalled);
disposable.Dispose();
Assert.True(onLeaveCalled);
}
public void ExecuteActionWhenDisposed()
{
// Arrange
var flag = false;
var action = new Action(() => flag = true);
var actionDisposable = new ActionDisposable(action);
// Act
actionDisposable.Dispose();
// Assert
flag.Should().BeTrue();
}
public void Constructor_no_actions_no_exceptions()
{
var instance = new ActionDisposable(null);
instance.Dispose();
}
public void HandleNavigated(ShellNavigatedEventArgs args)
{
_waitingForWindow?.Dispose();
_waitingForWindow = null;
// we don't want to fire Navigated until shell is attached to an actual window
if (_shell.Window == null || _shell.CurrentPage == null)
{
_shell.PropertyChanged += WaitForWindowToSet;
var shellContent = _shell?.CurrentItem?.CurrentItem?.CurrentItem;
if (shellContent != null)
{
shellContent.ChildAdded += WaitForWindowToSet;
}
_waitingForWindow = new ActionDisposable(() =>
{
_shell.PropertyChanged -= WaitForWindowToSet;
if (shellContent != null)
{
shellContent.ChildAdded -= WaitForWindowToSet;
}
});
void WaitForWindowToSet(object sender, EventArgs e)
{
if (_shell.Window != null &&
_shell.CurrentPage != null)
{
_waitingForWindow?.Dispose();
_waitingForWindow = null;
_shell.CurrentItem?.SendAppearing();
HandleNavigated(args);
}
}
return;
}
if (AccumulateNavigatedEvents)
{
if (_accumulatedEvent == null)
{
_accumulatedEvent = args;
}
}
else
{
_accumulatedEvent = null;
BaseShellItem baseShellItem = _shell.CurrentItem?.CurrentItem?.CurrentItem;
if (baseShellItem != null)
{
baseShellItem.OnAppearing(() =>
{
FireNavigatedEvents(args, _shell);
});
}
else
{
FireNavigatedEvents(args, _shell);
}
void FireNavigatedEvents(ShellNavigatedEventArgs a, Shell shell)
{
Navigated?.Invoke(this, args);
// reset active page route tree
Routing.ClearImplicitPageRoutes();
Routing.RegisterImplicitPageRoutes(_shell);
}
}
}